Cap for bottles



(No Model.)

W. A. SOHOLEY 81; F. C. SOHRADER. GAP FOR BOTTLES.

Patented June 28,- 1898.

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* UNITED STATES PATENT OFFICE.

WILLIAM A. SCHOLEY-AND FRANK O. SCHRADER, OF PHILADELPHIA,

' PENNSYLVANIA.

CAP-FOR BOTTLES.

SPECIFICATION forming part of Letters Patent No. 606,588, dated June 28, 1898.

' Application filed October 21,1896. SerlalNO- 609,572. (No model.)

- United States, and residents of Philadelphia,

Pennsylvania, have invented certain Improvements in Gaps for Bottles, of which the followingis a specification.

Our invention relates-to improvements in bottle-stoppers of the type in which aflanged cap is adapted to pass over the head of the bottle. These stoppers can be used for any style of bottle, but are especially used for sprinkler-tops, flasks, &c.

The object of our invention is to provide the cap with a gasket which is adapted to make the seal at a point below the mouth of the bottle, so as .to cheapen the manufacture and dispense with the grinding or finishing of the month end of the bottle, which process is essential when the ordinary stopper is used.

The essential feature of the invention resides in the novel means of permanently securing the gasket to the cap by spinning the end of the flange down upon the gasket.

In the accompanying drawings, Figure 1 is a sectional view of our improved stopper adapted to a bottle. Fig. 2 is a sectional view showing the method of attaching the gasket to the cap. Fig. 3 is a sectional view showing the cap detached from the bottle and showing the lip turned in to hold the gasket in place, and Fig. 4: is a view showing the gasket applied to a screw-cap bottle or flask Referring in the first instance to Figgl, A

is a bottle, in the head of which is an annular groove a. I B is the cap, which can be of any form according to the use for which it is intended.

In the present instance it is designed as a sprinkler-cap. This. cap has a deep flange b, and, as shown in Fig. 2, the flange has an annular lip or extension 19.

'O is a gasket or ring, preferably of cork, but it may be of other material having suffi cient elasticity that when the cap is forced down on the bottle it will prevent leakage. The ring is placed in the annular recess b and the lip 17" is turned under the gasket, as shown in Fig. 3, thus holding the gasket to the cap. This lip is preferably turned underthe gasket by spinning, so that the gasket will be 'securedan'd its-cap will "have a neat appearance.

It will be noticed in Fig. 1 that when the cap is forced onto the bottle the gasket'will enter the groove a in the head of the bottle, thus not only forming a joint, but also form- 'ing a retainer for the cap, as it is only essen tial inqbottles of this type to fasten the cap by friction, so that it can be readily forced off by pressure; but when it is necessary to provide a screw-cap for the bottle we use the construction shown in Fig. 4, in which the gasket is secured to the cap directly below the screw-thread, and when the cap is in place on the bottle the gasket will rest upon the shoulder a, formed on the bottle. This construction. is especially used on flasks, which must be made very cheaply.

It will be seen that in either-case a cork disk within the cap is not necessary, as we do not rely upon a tight fit betwe'en the end of the bottle and the cap, but solely upon the gasket at the endof the flange, and the cap can be substituted for the cork sprinklerhead now'commonly used in which the cork is forced into the mouth of the bottle.

We claim as our invention 1. A bottle-cap having a flange with an annular recess formed therein and a gasket with-- in the recess, the end ofthe flange being spun down upon the gasket, substantially as described.

2. A bottle-cap made of pliable metal and comprising the body B having a flange 6 0E- set to form-a recess 12 and a gasket 0 contaiiied Within the recess of the flange, the lip b of v the flange which extends beyond the gasket being spun down upon the same, substantially as described.

3. The combination of a bottle having a shoulder, and a screw-threaded extension above the shoulder, with a cap having a deep flange, a screw-thread thereon adapted to the screw-thread on the bottle, and a gasket mounted in an annular recess formed by an extension of the flange, the end of said flange being spun down upon the gasket, said gasket resting upon the shoulder of the bottle, substantially as described.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

WILLIAM A. SGHOLEY. FRANK CL. SOHRADER. Witnesses:

WILL. A. BARR, F. E. BEOHTOLD. 

